Wall block



FIG. 1 is a perspective view of a wall block, as viewed from the front, top, and one side of the block.

FIG. 2 is a cross-sectional view of the block taken along line 2-2 of FIG. 3.

FIG. 3 is a top plan view of the block of FIG. 1.

FIG. 4 is a side elevation view of the block of FIG. 1, the opposite side being a mirror image thereof.

FIG. 5 is a bottom plan view of the block of FIG. 1.

FIG. 6 is a rear elevation view of the block of FIG. 1; and,

FIG. 7 is a front elevation view of the block of FIG. 1.

The dashed lines in the drawings represent unclaimed portions of the design. 

I claim the ornamental design for a wall block, as shown and described. 